事后产生的想法 meaning in English

afterthought

In many projects , formal requirements are done as an afterthought , if at all
在许多项目中，正式的需求毕竟是事后产生的想法。
One of the biggest problems in developing secure applications is that security is often an afterthought , something to implement after a project is code - complete
开发安全应用程序的一个最大问题在于，安全性通常是事后产生的想法，在项目代码完成后才能实现。